diff --git a/schema/pgsql/schema.sql b/schema/pgsql/schema.sql
index 95486b34..0010daa0 100644
--- a/schema/pgsql/schema.sql
+++ b/schema/pgsql/schema.sql
@@ -161,6 +161,24 @@ BEGIN
 END;
 $$;
 
+/* At the moment Icinga DB Web doesn't know the column types,
+   so it sends SQL queries with LIKE operators for all suggestions in the search bar,
+   which fails for numeric and enum types on PostgreSQL.
+   To support this, the LIKE operator (internally translated to ~~) is overloaded.
+   Note that this is only a temporary solution until Icinga DB Web provides column type support.
+ */
+CREATE OR REPLACE FUNCTION anynonarrayliketext(anynonarray, text)
+  RETURNS bool
+  LANGUAGE plpgsql
+  IMMUTABLE
+  PARALLEL SAFE
+  AS $$
+    BEGIN
+      RETURN $1::TEXT LIKE $2;
+    END;
+  $$;
+CREATE OPERATOR ~~ (LEFTARG=anynonarray, RIGHTARG=text, PROCEDURE=anynonarrayliketext);
+
 CREATE TABLE host (
   id bytea20 NOT NULL,
   environment_id bytea20 NOT NULL,